Controller

About fab2

The fab2 team can build anything. We design all the hardware and software needed to make chips and we make the fabs, tools, and components ourselves.

We're looking for exceptional, hands-on people who can iterate to the limits of what's possible.

fab2 was founded by Sam Zeloof and Jim Keller . Sam is best known for making chips in his garage, and Jim has been a leader in the semiconductor industry for the past 40 years.

About the Team

This role sits on the Business Operations team, which is responsible for building the operational foundation that lets fab2 scale. We believe our internal systems should be as thoughtful and ambitious as the products we build. As we grow, we need accounting infrastructure that's clean, scalable, and audit-ready.

About the Role

As fab2 first dedicated accounting leader, this Controller will own the accounting function and build the financial foundations we need for our next stage of growth. This is a critical role with real scope, and the processes, systems, and controls you put in place will define how this company operates for years to come.

You'll own all accounting operations from end-to-end. This includes running a clean, disciplined close process; building out manufacturing and inventory accounting; establishing controls and approval workflows; and driving audit readiness.

You'll partner closely with Finance, Operations, and the broader business to ensure our accounting infrastructure keeps pace with how the company is scaling and what comes next. This is an autonomous, high-ownership role in a fast-moving environment. The right person is comfortable with ambiguity, motivated to create structure where little exists, and confident running the function independently.

Responsibilities

Own accounting operations for a complex hardware-intensive environment, across general ledger, AP, payroll accounting, accruals, fixed assets, inventory, cost accounting, and financial statement integrity.

Lead monthly, quarterly, and annual close processes, including timelines, reconciliations, review controls, and reporting packages.

Build and maintain scalable accounting policies, processes, and controls that support accuracy, compliance, and operational efficiency.

Develop the accounting infrastructure needed for a hardware and manufacturing environment, including inventory accounting, WIP, COGS, costing methodology, reserves, physical inventory processes, R&D, and capex/fixed asset accounting.

Evaluate, implement, and scale accounting systems and tools, including ERP, AP/AR automation, expense management, and close management systems.

Own audit readiness and core accounting operations, including external audit coordination, treasury, tax filings, registrations, and related vendor management.

Work cross-functionally with Finance, Operations, Legal, and leadership to translate accounting requirements into practical business processes.

Build and lead the accounting team over time, including hiring, developing, and managing future team members.

Required Experience

CPA certification required; Big 4 or equivalent national firm experience strongly preferred.

Experience leading or preparing for external audits, including managing auditor relationships, documentation, and support schedules.

Background in hardware, manufacturing, capital equipment, or another inventory-heavy environment.

Deep expertise in inventory accounting, standard costing, WIP, COGS, reserves, R&D, and fixed asset accounting.

Proven ability to build accounting processes, controls, and policies in a growing company.

Hands-on leading ERP implementations with strong cross-functional modules, including MES, PLM, and inventory management tools.

Strong GAAP expertise, including ASC 606, 330, 460, 842, 718, 730.

Proactive and hands-on: comfort operating in a fast-moving, ambiguous environment.

Strong cross-functional communicator: you have the ability to translate accounting requirements for engineering, operations, leadership, and other non-finance stakeholders alike.

Bachelor’s degree in Accounting, Finance, Economics, Mathematics, or a related technical discipline.

Nice-to-have

Semiconductor or deep-tech industry experience.

Experience as an early or foundational accounting hire at a startup.

Working at fab2

We’re an early-stage hardware startup with solid funding, world-class advisors, and labs/offices in Austin, TX, Lockhart, TX, and San Francisco, CA.

Compensation: fab2 committed to fair and equitable compensation practices. The annual salary range for this role is $200,000 – $250,000. Compensation is determined based on your qualifications and experience. Our total compensation package also includes generous equity in fab2.

Benefits: fab2 offers the following benefits, subject to applicable eligibility requirements:

Medical, Dental, and Vision insurance

Generous Paid Time Off inclusive of Holidays and Sick Time

Visa Sponsorship

Life and Disability Insurance

Paid Parental Leave

401(k) retirement plan

Weekly Learning & Development opportunities

Commuter Benefits including Parking and Late Night Uber rides from the office

Lunches daily, Dinners 3x per week, Stocked Office Kitchen with Snacks and Spindrifts

We are an equal-opportunity employer and do not discriminate on the basis of race, religion, national origin, gender, sexual orientation, age, veteran status, disability or other legally protected statuses.

Export Control Analysis: This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls.

fab2, formerly known as Atomic Semi